body {
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f0f0f0;
}

.draggable-window {
    position: absolute;
    width: 300px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.window-header {
    padding: 10px;
    background-color: #6200ea;
    color: white;
    cursor: move;
    user-select: none; /* 防止文字被选中 */
}

.window-content {
    padding: 15px;
}
